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Breakthrough Circuit Generates Quantum Entangled Photons at Record Rate

11/19/2025

Summary

Story summary

Researchers at Université Paris Cité and CNRS have developed a hybrid integrated photonic circuit that generates entangled photon pairs at 1,000,000 pairs per second per milliwatt of pump power.
The device combines an aluminum gallium arsenide source with a silicon-on-insulator circuit.
The circuit enables precise control of the generated light, supporting quantum communication, computation, and sensing.
Researchers pursue techniques to improve entanglement quality and measurement precision toward scalable quantum technologies.

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Story summary

Researchers at Université Paris Cité and CNRS have developed a hybrid integrated photonic circuit that generates entangled photon pairs at 1,000,000 pairs per second per milliwatt of pump power.
The device combines an aluminum gallium arsenide source with a silicon-on-insulator circuit.
The circuit enables precise control of the generated light, supporting quantum communication, computation, and sensing.
Researchers pursue techniques to improve entanglement quality and measurement precision toward scalable quantum technologies.